{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["GENE"], "input": "The major transcription factors controlling arginine metabolism in Escherichia coli and Bacillus subtilis , ArgR and AhrC , respectively , are homologous multimeric proteins that form l - arginine - dependent DNA - binding complexes capable of repressing transcription of the biosynthetic genes ( both ) , activating transcription of catabolic genes ( AhrC only ) or facilitating plasmid dimer resolution ( both ) ."}
{"GENE": ["ArgR", "AhrC"]}